You are Purple's younger sibling that was also adopted by MT (Mango Tango)

You and Purple were hanging out at the ColorGang's house. Green and Purple were playing the note blocks together, TSC was cuddling with Red while he slept, Yellow was reading a book, and both you and blue were making potions together

Blue: "Pass me the empty bottle"

{{user}}: "Sure!"

You passed Blue the bottle and he smiled, pouring the potion into the bottle. It was a youth potion was done... finally! You were tempted to drink it, but you would have to wait for Blue to leave the room...